Merge mysql.com:/d2/hf/mrg/mysql-5.0-opt

into  mysql.com:/d2/hf/mrg/mysql-5.1-opt


mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/include/mix1.inc:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/innodb_mysql.result:
  Auto merged
mysql-test/t/func_gconcat.test:
  Auto merged
mysql-test/t/func_group.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_union.cc:
  Auto merged
mysql-test/r/ps.result:
  merging
mysql-test/r/subselect.result:
  merging
mysql-test/r/type_datetime.result:
  SCCS merged
mysql-test/t/ps.test:
  merging
mysql-test/t/subselect.test:
  merging
mysql-test/t/type_datetime.test:
  merging
sql/opt_sum.cc:
  SCCS merged

12 files changed, 589 insertions, 0 deletions

diff --git a/mysql-test/include/mix1.inc b/mysql-test/include/mix1.inc
index 4d7d86ccd10..7b90653e2c7 100644
--- a/mysql-test/include/mix1.inc
+++ b/mysql-test/include/mix1.inc
@@ -197,6 +197,31 @@ INSERT INTO t1 (c1) VALUES ('1b') ON DUPLICATE KEY UPDATE cnt=cnt+1;
 SELECT * FROM t1;
 DROP TABLE t1;
 
+#
+# Bug #28272: EXPLAIN for SELECT from an empty InnoDB table
+#
+
+CREATE TABLE t1 (
+  a1 decimal(10,0) DEFAULT NULL,
+  a2 blob,
+  a3 time DEFAULT NULL,
+  a4 blob,
+  a5 char(175) DEFAULT NULL,
+  a6 timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
+  a7 tinyblob,
+  INDEX idx (a6,a7(239),a5)
+) ENGINE=InnoDB;
+
+EXPLAIN SELECT a4 FROM t1 WHERE
+a6=NULL AND
+a4='UNcT5pIde4I6c2SheTo4gt92OV1jgJCVkXmzyf325R1DwLURkbYHwhydANIZMbKTgdcR5xS';
+
+EXPLAIN SELECT t1.a4 FROM t1, t1 t WHERE
+t.a6=t.a6 AND t1.a6=NULL AND
+t1.a4='UNcT5pIde4I6c2SheTo4gt92OV1jgJCVkXmzyf325R1DwLURkbYHwhydANIZMbKTgdcR5xS';
+
+DROP TABLE t1;
+
 --echo End of 4.1 tests
 
 
diff --git a/mysql-test/r/func_gconcat.result b/mysql-test/r/func_gconcat.result
index 4c7baac051a..bb09217d9d7 100644
--- a/mysql-test/r/func_gconcat.result
+++ b/mysql-test/r/func_gconcat.result
@@ -743,4 +743,30 @@ SELECT GROUP_CONCAT(DISTINCT UCASE(b)) FROM t1;
 GROUP_CONCAT(DISTINCT UCASE(b))
 ONE.1,TWO.2,ONE.3
 DROP TABLE t1;
+CREATE TABLE t1( a VARCHAR( 10 ), b INT );
+INSERT INTO t1 VALUES ( repeat( 'a', 10 ), 1), 
+( repeat( 'b', 10 ), 2);
+SET group_concat_max_len = 20;
+SELECT GROUP_CONCAT( a ) FROM t1;
+GROUP_CONCAT( a )
+aaaaaaaaaa,bbbbbbbbb
+Warnings:
+Warning	1260	1 line(s) were cut by GROUP_CONCAT()
+SELECT GROUP_CONCAT( DISTINCT a ) FROM t1;
+GROUP_CONCAT( DISTINCT a )
+aaaaaaaaaa,bbbbbbbbb
+Warnings:
+Warning	1260	1 line(s) were cut by GROUP_CONCAT()
+SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1;
+GROUP_CONCAT( a ORDER BY b )
+aaaaaaaaaa,bbbbbbbbb
+Warnings:
+Warning	1260	1 line(s) were cut by GROUP_CONCAT()
+SELECT GROUP_CONCAT( DISTINCT a ORDER BY b ) FROM t1;
+GROUP_CONCAT( DISTINCT a ORDER BY b )
+aaaaaaaaaa,bbbbbbbbb
+Warnings:
+Warning	1260	1 line(s) were cut by GROUP_CONCAT()
+SET group_concat_max_len = DEFAULT;
+DROP TABLE t1;
 End of 5.0 tests
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result
index 0e6cae2f103..1f640dec0a4 100644
--- a/mysql-test/r/func_group.result
+++ b/mysql-test/r/func_group.result
@@ -1321,4 +1321,51 @@ SELECT a,AVG(DISTINCT b) AS average FROM t1 GROUP BY a HAVING average > 50;
 a	average
 1	32768.5000
 DROP TABLE t1;
+CREATE TABLE t1 ( a INT, b INT, KEY(a) );
+INSERT INTO t1 VALUES (NULL, 1), (NULL, 2);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
+SELECT MIN(a), MIN(b) FROM t1;
+MIN(a)	MIN(b)
+NULL	1
+CREATE TABLE t2( a INT, b INT, c INT, KEY(a, b) );
+INSERT INTO t2 ( a, b, c ) VALUES ( 1, NULL, 2 ), ( 1, 3, 4 ), ( 1, 4, 4 );
+EXPLAIN SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	ref	a	a	5	const	2	Using where
+SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
+MIN(b)	MIN(c)
+3	2
+CREATE TABLE t3 (a INT, b INT, c int, KEY(a, b));
+INSERT INTO t3 VALUES (1, NULL, 1), (2, NULL, 2),  (2, NULL, 2),  (3, NULL, 3);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t3 where a = 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+SELECT MIN(a), MIN(b) FROM t3 where a = 2;
+MIN(a)	MIN(b)
+2	NULL
+CREATE TABLE t4 (a INT, b INT, c int, KEY(a, b));
+INSERT INTO t4 VALUES (1, 1, 1), (2, NULL, 2),  (2, NULL, 2),  (3, 1, 3);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t4 where a = 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+SELECT MIN(a), MIN(b) FROM t4 where a = 2;
+MIN(a)	MIN(b)
+2	NULL
+SELECT MIN(b), min(c) FROM t4 where a = 2;
+MIN(b)	min(c)
+NULL	2
+CREATE TABLE t5( a INT, b INT, KEY( a, b) );
+INSERT INTO t5 VALUES( 1, 1 ), ( 1, 2 );
+EXPLAIN SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1;
+MIN(a)	MIN(b)
+1	1
+SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1 and b > 1;
+MIN(a)	MIN(b)
+1	2
+DROP TABLE t1, t2, t3, t4, t5;
 End of 5.0 tests
diff --git a/mysql-test/r/innodb_mysql.result b/mysql-test/r/innodb_mysql.result
index c4bae224846..631d9fc2e68 100644
--- a/mysql-test/r/innodb_mysql.result
+++ b/mysql-test/r/innodb_mysql.result
@@ -145,6 +145,27 @@ SELECT * FROM t1;
 c1	cnt
 1a	2
 DROP TABLE t1;
+CREATE TABLE t1 (
+a1 decimal(10,0) DEFAULT NULL,
+a2 blob,
+a3 time DEFAULT NULL,
+a4 blob,
+a5 char(175) DEFAULT NULL,
+a6 timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
+a7 tinyblob,
+INDEX idx (a6,a7(239),a5)
+) ENGINE=InnoDB;
+EXPLAIN SELECT a4 FROM t1 WHERE
+a6=NULL AND
+a4='UNcT5pIde4I6c2SheTo4gt92OV1jgJCVkXmzyf325R1DwLURkbYHwhydANIZMbKTgdcR5xS';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+EXPLAIN SELECT t1.a4 FROM t1, t1 t WHERE
+t.a6=t.a6 AND t1.a6=NULL AND
+t1.a4='UNcT5pIde4I6c2SheTo4gt92OV1jgJCVkXmzyf325R1DwLURkbYHwhydANIZMbKTgdcR5xS';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
+DROP TABLE t1;
 End of 4.1 tests
 create table t1m (a int) engine = MEMORY;
 create table t1i (a int);
diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result
index 15e1c8730f0..ee92d549912 100644
--- a/mysql-test/r/ps.result
+++ b/mysql-test/r/ps.result
@@ -1190,6 +1190,214 @@ EXECUTE b12651;
 DROP VIEW b12651_V1;
 DROP TABLE b12651_T1, b12651_T2;
 DEALLOCATE PREPARE b12651;
+DROP TABLE IF EXISTS t1, t2;
+CREATE TABLE t1 (i INT);
+PREPARE st_19182
+FROM "CREATE TABLE t2 (i INT, j INT, KEY (i), KEY(j)) SELECT i FROM t1";
+EXECUTE st_19182;
+DESC t2;
+Field	Type	Null	Key	Default	Extra
+j	int(11)	YES	MUL	NULL	
+i	int(11)	YES	MUL	NULL	
+DROP TABLE t2;
+EXECUTE st_19182;
+DESC t2;
+Field	Type	Null	Key	Default	Extra
+j	int(11)	YES	MUL	NULL	
+i	int(11)	YES	MUL	NULL	
+DEALLOCATE PREPARE st_19182;
+DROP TABLE t2, t1;
+drop database if exists mysqltest;
+drop table if exists t1, t2;
+create database mysqltest character set utf8;
+prepare stmt1 from "create table mysqltest.t1 (c char(10))";
+prepare stmt2 from "create table mysqltest.t2 select 'test'";
+execute stmt1;
+execute stmt2;
+show create table mysqltest.t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `c` char(10) default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8
+show create table mysqltest.t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `test` varchar(4) character set latin1 NOT NULL default ''
+) ENGINE=MyISAM DEFAULT CHARSET=utf8
+drop table mysqltest.t1;
+drop table mysqltest.t2;
+alter database mysqltest character set latin1;
+execute stmt1;
+execute stmt2;
+show create table mysqltest.t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `c` char(10) character set utf8 default NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+show create table mysqltest.t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `test` varchar(4) NOT NULL default ''
+) ENGINE=MyISAM DEFAULT CHARSET=latin1
+drop database mysqltest;
+deallocate prepare stmt1;
+deallocate prepare stmt2;
+execute stmt;
+show create table t1;
+drop table t1;
+execute stmt;
+show create table t1;
+drop table t1;
+deallocate prepare stmt;
+CREATE TABLE t1(a int);
+INSERT INTO t1 VALUES (2), (3), (1);
+PREPARE st1 FROM
+'(SELECT a FROM t1) UNION (SELECT a+10 FROM t1) ORDER BY RAND()*0+a';
+EXECUTE st1;
+a
+1
+2
+3
+11
+12
+13
+EXECUTE st1;
+a
+1
+2
+3
+11
+12
+13
+DEALLOCATE PREPARE st1;
+DROP TABLE t1;
+End of 4.1 tests.
+create table t1 (a varchar(20));
+insert into t1 values ('foo');
+prepare stmt FROM 'SELECT char_length (a) FROM t1';
+ERROR 42000: FUNCTION test.char_length does not exist
+drop table t1;
+create table t1 (a char(3) not null, b char(3) not null,
+c char(3) not null, primary key  (a, b, c));
+create table t2 like t1;
+prepare stmt from
+"select t1.a from (t1 left outer join t2 on t2.a=1 and t1.b=t2.b)
+  where t1.a=1";
+execute stmt;
+a
+execute stmt;
+a
+execute stmt;
+a
+prepare stmt from
+"select t1.a, t1.b, t1.c, t2.a, t2.b, t2.c from
+(t1 left outer join t2 on t2.a=? and t1.b=t2.b)
+left outer join t2 t3 on t3.a=? where t1.a=?";
+set @a:=1, @b:=1, @c:=1;
+execute stmt using @a, @b, @c;
+a	b	c	a	b	c
+execute stmt using @a, @b, @c;
+a	b	c	a	b	c
+execute stmt using @a, @b, @c;
+a	b	c	a	b	c
+deallocate prepare stmt;
+drop table t1,t2;
+SET @aux= "SELECT COUNT(*)
+                FROM INFORMATION_SCHEMA.COLUMNS A,
+                INFORMATION_SCHEMA.COLUMNS B
+                WHERE A.TABLE_SCHEMA = B.TABLE_SCHEMA
+                AND A.TABLE_NAME = B.TABLE_NAME
+                AND A.COLUMN_NAME = B.COLUMN_NAME AND
+                A.TABLE_NAME = 'user'";
+prepare my_stmt from @aux;
+execute my_stmt;
+COUNT(*)
+37
+execute my_stmt;
+COUNT(*)
+37
+execute my_stmt;
+COUNT(*)
+37
+deallocate prepare my_stmt;
+drop procedure if exists p1|
+drop table if exists t1|
+create table t1 (id int)|
+insert into t1 values(1)|
+create procedure p1(a int, b int)
+begin
+declare c int;
+select max(id)+1 into c from t1;
+insert into t1 select a+b;
+insert into t1 select a-b;
+insert into t1 select a-c;
+end|
+set @a= 3, @b= 4|
+prepare stmt from "call p1(?, ?)"|
+execute stmt using @a, @b|
+execute stmt using @a, @b|
+select * from t1|
+id
+1
+7
+-1
+1
+7
+-1
+-5
+deallocate prepare stmt|
+drop procedure p1|
+drop table t1|
+create table t1 (a int);
+insert into t1 (a) values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
+prepare stmt from "select * from t1 limit ?, ?";
+set @offset=0, @limit=1;
+execute stmt using @offset, @limit;
+a
+1
+select * from t1 limit 0, 1;
+a
+1
+set @offset=3, @limit=2;
+execute stmt using @offset, @limit;
+a
+4
+5
+select * from t1 limit 3, 2;
+a
+4
+5
+prepare stmt from "select * from t1 limit ?";
+execute stmt using @limit;
+a
+1
+2
+prepare stmt from "select * from t1 where a in (select a from t1 limit ?)";
+ERROR 42000: This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
+prepare stmt from "select * from t1 union all select * from t1 limit ?, ?";
+set @offset=9;
+set @limit=2;
+execute stmt using @offset, @limit;
+a
+10
+1
+prepare stmt from "(select * from t1 limit ?, ?) union all
+                   (select * from t1 limit ?, ?) order by a limit ?";
+execute stmt using @offset, @limit, @offset, @limit, @limit;
+a
+10
+10
+drop table t1;
+deallocate prepare stmt;
+CREATE TABLE b12651_T1(a int) ENGINE=MYISAM;
+CREATE TABLE b12651_T2(b int) ENGINE=MYISAM;
+CREATE VIEW  b12651_V1 as SELECT b FROM b12651_T2;
+PREPARE b12651 FROM 'SELECT 1 FROM b12651_T1 WHERE a IN (SELECT b FROM b12651_V1)';
+EXECUTE b12651;
+1
+DROP VIEW b12651_V1;
+DROP TABLE b12651_T1, b12651_T2;
+DEALLOCATE PREPARE b12651;
 create table t1 (id int);
 prepare ins_call from "insert into t1 (id) values (1)";
 execute ins_call;
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index e90f43b9870..3dc1795a65a 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -4041,6 +4041,36 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	a	a	5	const	1	Using where; Using index
 2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using temporary; Using filesort
 DROP TABLE t1;
+CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id));
+INSERT INTO t1 VALUES
+(3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY');
+CREATE TABLE t2 (id int NOT NULL, INDEX idx(id));
+INSERT INTO t2 VALUES (7), (5), (1), (3);
+SELECT id, st FROM t1 
+WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+id	st
+3	FL
+1	GA
+7	FL
+SELECT id, st FROM t1 
+WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+GROUP BY id;
+id	st
+1	GA
+3	FL
+7	FL
+SELECT id, st FROM t1 
+WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+id	st
+2	GA
+4	FL
+SELECT id, st FROM t1 
+WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+GROUP BY id;
+id	st
+2	GA
+4	FL
+DROP TABLE t1,t2;
 End of 5.0 tests.
 CREATE TABLE t1 (a int, b int);
 INSERT INTO t1 VALUES (2,22),(1,11),(2,22);
diff --git a/mysql-test/r/type_datetime.result b/mysql-test/r/type_datetime.result
index e1be32aa7eb..9a6dd44faa1 100644
--- a/mysql-test/r/type_datetime.result
+++ b/mysql-test/r/type_datetime.result
@@ -346,6 +346,36 @@ call test27759();
 a	b	a_then_b	b_then_a	c_then_a
 2007-04-10	2007-04-11	2007-04-10	2007-04-10	2004-04-09 00:00:00
 drop procedure test27759;
+create table t1 (f1 date);
+insert into t1 values (curdate());
+select left(f1,10) = curdate() from t1;
+left(f1,10) = curdate()
+1
+drop table t1;
+create table t1(f1 date);
+insert into t1 values('01-01-01'),('02-02-02'),('01-01-01'),('02-02-02');
+set @bug28261='';
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+if(@bug28261 = f1, '', @bug28261:= f1)
+2001-01-01
+2002-02-02
+2001-01-01
+2002-02-02
+Warnings:
+Warning	1292	Incorrect date value: '' for column 'f1' at row 1
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+if(@bug28261 = f1, '', @bug28261:= f1)
+2001-01-01
+2002-02-02
+2001-01-01
+2002-02-02
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+if(@bug28261 = f1, '', @bug28261:= f1)
+2001-01-01
+2002-02-02
+2001-01-01
+2002-02-02
+drop table t1;
 set @org_mode=@@sql_mode;
 create table t1 (da date default '1962-03-03 23:33:34', dt datetime default '1962-03-03');
 Warnings:
diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test
index 431d582be50..4e965d7e8c9 100644
--- a/mysql-test/t/func_gconcat.test
+++ b/mysql-test/t/func_gconcat.test
@@ -507,4 +507,18 @@ SELECT GROUP_CONCAT(DISTINCT UCASE(a)) FROM t1;
 SELECT GROUP_CONCAT(DISTINCT UCASE(b)) FROM t1;
 DROP TABLE t1;
 
+#
+# Bug #28273: GROUP_CONCAT and ORDER BY: No warning when result gets truncated.
+#
+CREATE TABLE t1( a VARCHAR( 10 ), b INT );
+INSERT INTO t1 VALUES ( repeat( 'a', 10 ), 1), 
+                      ( repeat( 'b', 10 ), 2);
+SET group_concat_max_len = 20;
+SELECT GROUP_CONCAT( a ) FROM t1;
+SELECT GROUP_CONCAT( DISTINCT a ) FROM t1;  
+SELECT GROUP_CONCAT( a ORDER BY b ) FROM t1;          
+SELECT GROUP_CONCAT( DISTINCT a ORDER BY b ) FROM t1; 
+SET group_concat_max_len = DEFAULT;
+DROP TABLE t1;
+
 --echo End of 5.0 tests
diff --git a/mysql-test/t/func_group.test b/mysql-test/t/func_group.test
index 778bfc9528f..d1b4919c83e 100644
--- a/mysql-test/t/func_group.test
+++ b/mysql-test/t/func_group.test
@@ -834,4 +834,38 @@ SELECT a,AVG(DISTINCT b) AS average FROM t1 GROUP BY a HAVING average > 50;
 
 DROP TABLE t1;
 
+#
+# Bug #27573: MIN() on an indexed column which is always NULL sets _other_ 
+# results to NULL
+#
+CREATE TABLE t1 ( a INT, b INT, KEY(a) );
+INSERT INTO t1 VALUES (NULL, 1), (NULL, 2);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t1;
+SELECT MIN(a), MIN(b) FROM t1;
+
+CREATE TABLE t2( a INT, b INT, c INT, KEY(a, b) );
+INSERT INTO t2 ( a, b, c ) VALUES ( 1, NULL, 2 ), ( 1, 3, 4 ), ( 1, 4, 4 );
+EXPLAIN SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
+SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
+
+CREATE TABLE t3 (a INT, b INT, c int, KEY(a, b));
+INSERT INTO t3 VALUES (1, NULL, 1), (2, NULL, 2),  (2, NULL, 2),  (3, NULL, 3);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t3 where a = 2;
+SELECT MIN(a), MIN(b) FROM t3 where a = 2;
+
+CREATE TABLE t4 (a INT, b INT, c int, KEY(a, b));
+INSERT INTO t4 VALUES (1, 1, 1), (2, NULL, 2),  (2, NULL, 2),  (3, 1, 3);
+EXPLAIN SELECT MIN(a), MIN(b) FROM t4 where a = 2;
+SELECT MIN(a), MIN(b) FROM t4 where a = 2;
+SELECT MIN(b), min(c) FROM t4 where a = 2;
+
+CREATE TABLE t5( a INT, b INT, KEY( a, b) ); 
+INSERT INTO t5 VALUES( 1, 1 ), ( 1, 2 );
+EXPLAIN SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1;
+SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1;
+SELECT MIN(a), MIN(b) FROM t5 WHERE a = 1 and b > 1;
+
+DROP TABLE t1, t2, t3, t4, t5;
+
+###
 --echo End of 5.0 tests
diff --git a/mysql-test/t/ps.test b/mysql-test/t/ps.test
index 44f9bf350b2..2336ccf0b58 100644
--- a/mysql-test/t/ps.test
+++ b/mysql-test/t/ps.test
@@ -1120,6 +1120,114 @@ DROP TABLE t1;
 
 --echo End of 4.1 tests.
 
+#
+# Bug#19182: CREATE TABLE bar (m INT) SELECT n FROM foo; doesn't work
+# from stored procedure.
+#
+# The cause of a bug was that cached LEX::create_list was modified,
+# and then together with LEX::key_list was reset.
+#
+--disable_warnings
+DROP TABLE IF EXISTS t1, t2;
+--enable_warnings
+
+CREATE TABLE t1 (i INT);
+
+PREPARE st_19182
+FROM "CREATE TABLE t2 (i INT, j INT, KEY (i), KEY(j)) SELECT i FROM t1";
+
+EXECUTE st_19182;
+DESC t2;
+
+DROP TABLE t2;
+
+# Check that on second execution we don't loose 'j' column and the keys
+# on 'i' and 'j' columns.
+EXECUTE st_19182;
+DESC t2;
+
+DEALLOCATE PREPARE st_19182;
+DROP TABLE t2, t1;
+
+#
+# Bug #22060 "ALTER TABLE x AUTO_INCREMENT=y in SP crashes server"
+#
+# Code which implemented CREATE/ALTER TABLE and CREATE DATABASE
+# statement modified HA_CREATE_INFO structure in LEX, making these
+# statements PS/SP-unsafe (their re-execution might have resulted
+# in incorrect results).
+#
+--disable_warnings
+drop database if exists mysqltest;
+drop table if exists t1, t2;
+--enable_warnings
+# CREATE TABLE and CREATE TABLE ... SELECT
+create database mysqltest character set utf8;
+prepare stmt1 from "create table mysqltest.t1 (c char(10))";
+prepare stmt2 from "create table mysqltest.t2 select 'test'";
+execute stmt1;
+execute stmt2;
+show create table mysqltest.t1;
+show create table mysqltest.t2;
+drop table mysqltest.t1;
+drop table mysqltest.t2;
+alter database mysqltest character set latin1;
+execute stmt1;
+execute stmt2;
+show create table mysqltest.t1;
+show create table mysqltest.t2;
+drop database mysqltest;
+deallocate prepare stmt1;
+deallocate prepare stmt2;
+#
+# CREATE TABLE with DATA DIRECTORY option
+#
+# Protect ourselves from data left in tmp/ by a previos possibly failed
+# test
+--system rm -f $MYSQLTEST_VARDIR/tmp/t1.*
+--disable_warnings
+--disable_query_log
+eval prepare stmt from "create table t1 (c char(10)) data directory='$MYSQLTEST_VARDIR/tmp'";
+--enable_query_log
+execute stmt;
+#
+# DATA DIRECTORY option does not always work: if the operating
+# system does not support symlinks, have_symlinks option is automatically
+# disabled.
+# In this case DATA DIRECTORY is silently ignored when
+# creating a table, and is not output by SHOW CREATE TABLE.
+#
+--disable_result_log
+show create table t1;
+--enable_result_log
+drop table t1;
+execute stmt;
+--disable_result_log
+show create table t1;
+--enable_result_log
+--enable_warnings
+drop table t1;
+deallocate prepare stmt;
+#
+
+#
+# Bug #27937: crash on the second execution for prepared statement 
+#             from UNION with ORDER BY an expression containing RAND()
+#
+
+CREATE TABLE t1(a int);
+INSERT INTO t1 VALUES (2), (3), (1);
+
+PREPARE st1 FROM
+  '(SELECT a FROM t1) UNION (SELECT a+10 FROM t1) ORDER BY RAND()*0+a';
+
+EXECUTE st1;
+EXECUTE st1;
+
+DEALLOCATE PREPARE st1;
+DROP TABLE t1;
+
+--echo End of 4.1 tests.
 
 ############################# 5.0 tests start ################################
 #
diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test
index aaeb998d0c7..12e2e4f1f25 100644
--- a/mysql-test/t/subselect.test
+++ b/mysql-test/t/subselect.test
@@ -2882,6 +2882,30 @@ INSERT INTO t1 VALUES (1,1),(2,1);
 EXPLAIN SELECT 1 FROM t1 WHERE a = (SELECT COUNT(*) FROM t1 GROUP BY b);
 DROP TABLE t1;
 
+#
+# Bug #28377: grouping query with a correlated subquery in WHERE condition
+#  
+
+CREATE TABLE t1 (id int NOT NULL, st CHAR(2), INDEX idx(id));
+INSERT INTO t1 VALUES
+  (3,'FL'), (2,'GA'), (4,'FL'), (1,'GA'), (5,'NY'), (7,'FL'), (6,'NY');
+CREATE TABLE t2 (id int NOT NULL, INDEX idx(id));
+INSERT INTO t2 VALUES (7), (5), (1), (3);
+
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+    GROUP BY id;
+
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
+SELECT id, st FROM t1 
+  WHERE st IN ('GA','FL') AND NOT EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
+    GROUP BY id;
+
+DROP TABLE t1,t2;
+
 --echo End of 5.0 tests.
 
 #
diff --git a/mysql-test/t/type_datetime.test b/mysql-test/t/type_datetime.test
index 7689f16baa4..23804633666 100644
--- a/mysql-test/t/type_datetime.test
+++ b/mysql-test/t/type_datetime.test
@@ -227,6 +227,28 @@ call test27759();
 drop procedure test27759;
 
 #
+# Bug#28208: Wrong result of a non-const STRING function with a const
+#            DATETIME function.
+#
+create table t1 (f1 date);
+insert into t1 values (curdate());
+select left(f1,10) = curdate() from t1;
+drop table t1;
+
+#
+# Bug#28261: Wrong DATETIME comparison result when the GET_USER_VAR function
+#            is involved.
+#
+create table t1(f1 date);
+insert into t1 values('01-01-01'),('02-02-02'),('01-01-01'),('02-02-02');
+set @bug28261='';
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+select if(@bug28261 = f1, '', @bug28261:= f1) from t1;
+drop table t1;
+
+
+#
 # Test of storing datetime into date fields
 #